Award Data

A RESEARCH PROGRAM IS PROPOSED TO DEMONSTRATE THE FEASIBILITY OF A COMPANY PROPRIETARY LIGHTWEIGHT, COMPACT SOUND SOURCE CONCEPT TO GENERATE THE HIGH INTENSITY, HIGH FREQUENCY CONTROLLED SOUND PRESSURES REQUIRED IN EXPERIMENTAL INVESTIGATIONS OF COMBUSTION INSTABILITY IN LIQUID ROCKET ENGINES. THE PROPOSED WORK PLAN IS DIVIDED INTO THREE PRINCIPAL PARTS. THE FIRST IS TO SELECT THE MOST PROMISING D ...

HNC HAS DEVELOPED AN AUTOMATED MECHANISM FOR INDEXING AND RETRIEVING FREE TEXT DOCUMENTS CALLED DOCUMENT RETNEVAL USING MEANING (DKUM). DRUM IS BASED ON CONTEXT VECTORS THAT ENCODE A REPRESENTATION OF THE MEANING OF DOCUMENTS. THIS HNC PROPRIETARY APPROACH WAS CHOSEN FOR FUNDING BY DARPA AS PM OF THE TIPSTEK TEXT DETECTION AND EXTRACTION PROGRAM. DRUM IS ABLE TO: * PERFORM FREE TEXT DATABASE DOCUM ...

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There is a need for a unified method specifically designed to predict tendencies for pilot-in-the-loop oscillations (PIOs). The requirement for such a method is apparent from the significant number of castastropic PIOs that have occurred recently in modern fly-by-wire aircraft, such as the YF-22 and the Swedish Saab Gripen. To be successful, the PIO prediction method must: be accepted as valid by ...

We propose to implement a terabyte optical disk using holographic storage in lithium niobate crystals. Lithium niobate crystals have been extensively characterized as a storage media and it is readily available commercially. The key innovation of the proposed system is the incorporation of the dynamic copying method with the 3-D holographic disk which compensates for the erasure of the stored holo ...

The Montreal protocol banning halon production after 1995 has motivated the Air Force to actively seek replacements for halocarbon fire extinguishers. Currently proposed drop-in replacements such as HCFC's and CF3I have carbon-halogen bonds and are thus vulnerable to the same environmental concerns as is CF3Br (Halon 1301). While bromine atoms are very effective at catalytically poisoning the chai ...

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This Phase I feasibility effort will formulate a comprehensive algorithm incorporating (a) multispectral/stereo sensor fusion, and (b) sensor/terrain database correlation, to generate a three-dimensional range estimate to relevant terrain and man-made objects of interests, to enhance situational awareness during approach, landing, and taxiing at a representative airport. It is also desirable that ...

Rapid, on-line characterization of water vapor content and/or condensed-phase (liquid or ice) mass loading is required to measure the total moisture content of flows in ducts from 0.30m to 4.6m in diameter over a range of flow conditions. A successful proposal must address one or more of the flow conditions outlined in the solicitation. Measurement response times on the order of one second are nec ...